A Primary Arithmeticde Gordon A. Southworth, John C. StoneMateriascentsinchescostbushelsoralsquarecubicfeetmultiplicationtenssquare inchescubic inchesEdiciones (1)A Primary Arithmetic (1905)H.H. Sanborn · inglésMás obras de Gordon A. SouthworthThe Essentials of Arithmetic, Oral and Written1895The Southworth-Stone Arithmetic: A Rational Method. Bk. I, for Lower Grades1904A course of language study in outline